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iOS Build a Weather App with Swift Interacting with Data From the Web Constructing a URL

Brian Uribe
Brian Uribe
3,488 Points

Absolute URL

Am I understanding this correctly? I'm trying to establish an absolute URL

import Foundation

let treehouseCourseID = 25

let treehouseBaseURL = NSURL(string: "https://api.teamtreehouse.com/")

let courseURL = NSURL(string: "\(treehouseCourseID)", relativeToURL: treehouseBaseURL)

1 Answer

This was a bit tricky ... on the first challenge the treehouseBaseURL = https://api.teamtreehouse.com/ However on the second challenge the path to treehouse courses is shown to include the string; "course/" which must be added to the let courseURL constant. So what we need is; courseURL = treehouseBaseURL + "course/" + treehouseCourseID The code you have instead is; courseURL = treehouseBaseURL + TreehouseCourseID Try the following code: let courseURL = NSURL(string: "course/ (treehouseCourseID)", relativeToURL: treehouseBaseURL) Hope this helps